Question

Cecilia made an envelope to mail a letter. She colored the regular trapezoid flap on the bottom of the envelope blue,

shown.
5 in.
2 in
9 in.
What is the area of the blue flap of the envelope?
O 14 in 2
O 18 in 2 45in2. 90in2

Answer 1

14 inch ^2

Explanation:

Area of a trapezium= (a+b) 2 times h

so side a= 5 inches

side b= 9 inches

then times by 2 times the height (2)

you can rearrange the formula to this- a + b/ 2 times height.

5+9/2 times 2= 14

I hope this helps, have a lovely day.