8th Mathematics Weekly Test - 2(Measurements) Question paper for Tamilnadu Stateboard / Matriculation Schools , Coaching Centers, tuition, tutorials,teachers, Students, parents

Part - A

Multiple Choice Question - Answer All Question

A closed plane figure formed by three or more sides is called a

quadrilateral
pentagon
triangle
polygon

The __________ of a combined shape is the sum of all areas of all areas of simpler shapes on it.

perimeter
face
volume
area

The line segment which connects any two faces are called ______.

edges
vertices
shape
faces

Part - B

Fill in the blanks - Answer All Question

The cross section of a solid cylinder is _______.

The area of the circle inscribed exactly on an equilateral triangle is 154 cm². Find the perimeter of the triangle?

Find the area of the larger triangle that can be inscribed in a semi circle of radius' r' cm.

The perimeter of a triangle is 300 cm and the circumference of the incircle is 88cm. Find the area of the triangle.

The area of the circle is 220 cm². What is the area of the square inscribed in it?

Part - C

Generic 2 - Answer All Question

Th ree identical coins, each of diameter 6 cm are placed as shown. Find the area of the shaded region between the coins. (π=3.14)(√3=1.732)

Using Euler’s formula, find the unknowns.

S.No. Faces Vertices Edges

(i) ? 6 14

(ii) 8 ? 10

(iii) 20 10 ?

The given circular figure is divided into six equal parts. Can we call the parts as sectors? Why?

Show that the area of the unshaded regions in each of the squares of side 'a' units are the same in all the cases given below.

Part - D

Generic 3 - Answer All Question

A circular arc whose radius is 12 cm makes an angle 30° at the center. Find the perimeter of the sector formed (u3160 = 3.14)

If the circumference of a circle increases from 4\(\pi\) to 8\(\pi\), then find the change in the area

If the radius of a circle decreases by 10% then what is the decreases in area?

Part - E

Generic 5 - Answer All Question

PQRS is a diameter of a circle of radius 6 cm. The lengths PQ, QR and RS are equal semi-circles drawn on PQ and QS as diameters. Find the perimeter and area of the shaded region

The area of the equilateral triangle is 49 \(\sqrt { 3 } \)cm². Taking each angular point as centre a circle is described with radius equal to half the length of the side of the triangle. Find the area of the triangle not included in the circle (\(\sqrt { 3 } \) = 1.73 and π = \(\frac { 22 }{ 7 } \))

An athletic track 14m wide consists of two straight sections 120m long joining semicircular ends whose inner radius is 35 m. Calculate the area of the shaded region.

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11Th Standard

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9Th Standard

8th Mathematics Weekly Test - 2(Measurements)

St. Britto Hr. Sec. School - Madurai

8th Mathematics Weekly Test - 2(Measurements)-Aug 2020

Part - A

Multiple Choice Question - Answer All Question

A closed plane figure formed by three or more sides is called a

The __________ of a combined shape is the sum of all areas of all areas of simpler shapes on it.

The line segment which connects any two faces are called ______.

Part - B

Fill in the blanks - Answer All Question

The cross section of a solid cylinder is _______.

The area of the circle inscribed exactly on an equilateral triangle is 154 cm2. Find the perimeter of the triangle?

Find the area of the larger triangle that can be inscribed in a semi circle of radius' r' cm.

The perimeter of a triangle is 300 cm and the circumference of the incircle is 88cm. Find the area of the triangle.

The area of the circle is 220 cm2. What is the area of the square inscribed in it?

Part - C

Generic 2 - Answer All Question

Th ree identical coins, each of diameter 6 cm are placed as shown. Find the area of the shaded region between the coins. (π=3.14)(√3=1.732)

Using Euler’s formula, find the unknowns. S.No. Faces Vertices Edges (i) ? 6 14 (ii) 8 ? 10 (iii) 20 10 ?

The given circular figure is divided into six equal parts. Can we call the parts as sectors? Why?

Show that the area of the unshaded regions in each of the squares of side 'a' units are the same in all the cases given below.

Part - D

Generic 3 - Answer All Question

A circular arc whose radius is 12 cm makes an angle 30° at the center. Find the perimeter of the sector formed (u3160 = 3.14)

If the circumference of a circle increases from 4\(\pi\) to 8\(\pi\), then find the change in the area

If the radius of a circle decreases by 10% then what is the decreases in area?

Part - E

Generic 5 - Answer All Question

PQRS is a diameter of a circle of radius 6 cm. The lengths PQ, QR and RS are equal semi-circles drawn on PQ and QS as diameters. Find the perimeter and area of the shaded region

An athletic track 14m wide consists of two straight sections 120m long joining semicircular ends whose inner radius is 35 m. Calculate the area of the shaded region.

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Tamilnadu Stateboardszs - Class

The area of the circle inscribed exactly on an equilateral triangle is 154 cm². Find the perimeter of the triangle?

The area of the circle is 220 cm². What is the area of the square inscribed in it?

Using Euler’s formula, find the unknowns.

S.No. Faces Vertices Edges

(i) ? 6 14

(ii) 8 ? 10

(iii) 20 10 ?