Advertisements
Advertisements
Question
In the figure given below, find the area of shaded region: (All measurements are in cm)
Advertisements
Solution
Outer length = 20 cm
and breadth = 16 cm
∴ Outer area = l × b
= 20 × 16 cm2 = 320 cm2
Inner length = 15 cm
and Inner breadth = 10 cm
∴ Inner area = 15 × 10 = 150 cm2
∴ Area of shaded region = Area of whole region − Area of unshaded region
= 320 − 150 cm2 = 170 cm2
APPEARS IN
RELATED QUESTIONS
In the figure given below, find the area of shaded region: (All measurements are in cm)
The base of a parallelogram is thrice it height. If its area is 768 cm2, find the base and the height of the parallelogram.
Find the area of the rhombus, if its diagonals are 30 cm and 24 cm.
If the area of a rhombus is 112 cm2 and one of its diagonals is 14 cm, find its other diagonal.
The area of a right-angled triangle is 160 cm2. If its one leg is 16 cm long, find the length of the other leg.
The sides of a triangle are 21 cm, 17 cm, and 10 cm. Find its area.
Find the area of an isosceles triangle whose base is 16 cm and the length of each of the equal sides is 10 cm.
The area of an equilateral triangle is (`64xxsqrt3`) cm2. Find the length of each side of the triangle.
A metal wire, when bent in the form of a square of largest area, encloses an area of 484 cm2. Find the length of the wire. If the same wire is bent to the largest circle, find:
(i) radius of the circle formed.
(ii) area of the circle.
From each corner of a rectangular paper (30 cm x 20 cm) a quadrant of a circle of radius 7 cm is cut. Find the area of the remaining paper i.e., shaded portion.
