Question

find the area of the shaded part

Answer 1

Answer:

#3 would have an area of 24 cm. IDK what the answer to #4 would be, but try using Pythagorean theorem.

Step-by-step explanation:

3.) The triangles are both right triangles. Since you know both triangles are the same based on the measurements and right angles you only have to find one triangles area and double. If you multiply 3 cm and 4 cm (l*w) you get 12 cm. 12 cm doubled is 24, so the area for the shaded figure is 24 cm.

Answer 2

Fig 1


iii) The shaded part is in a shape of parallelogram.
so the area of parallelogram = base*height
base = 3 cm
height. = 4 cm
area = 3*4
= 12 sq. m

iv) First make there unit of 1 cm.
Check the fig 1
So the area is 71 sq. unit