Find the area of shaded portion in the given figures
if anybody answer's correctly I will mark them brainlest
Answers
Answer for 1 is 110 cm^2 & for 2 is 150 cm^2
110 cm2,150 cm2
Step-by-step explanation:
first diagram:
first find the area of the rectangle(ABCD):
l*w=18*10=180
second find the area of triangle(EAF):
:l*b/2=10*6/2=30
third find the area of triangle (CBE):
:l*b/2=10*8/2=40
AREA OF THE SHADED PORTION IS :
AREA OF THE RECTANGLE -(AREA OF TRIANGLE(EAF)+AREA OF TRIANGLE(CBE)
180-(30+40)=110
AREA OF THE SHADED PORTION=110 CM2
SECOND diagram:
first find the area of the square (PQRS):a*a
20*20=400 cm2
second find the area of the triangle (PQT):l*b/2
20*10/2=100
third find the area of the triangle (TSU):l*b/2
10*10/2=50
fourth find the area of the triangle (QRU):l*b/2
10*20/2=100
area of the shaded portion=area of the SQUARE(PQRS)-(area of the triangle (PQT)+area of the triangle (TSU)+area of the triangle (QRU)
400-(100+50+100)=150cm2