A= (a+b)/2*h
A=(12+15)/2*5
A=(27/2)*5
A=13.5*5
A=67.5in
Answer:
i think its 60
Step-by-step explanation:
base times height then divide by 2
Perimeter is 2l+2w
100 =2(30) + 2w
100 =60 + 2w
-60 -60
40 = 2w
w=20 meters.
Answer:
x= 40°
Step-by-step explanation:
Please see attached picture for full solution.
Key concepts:
- Corresponding angles are equal to each other
- The sum of the angles in a triangle add up to 180°