Answer: 172 square centimeters.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a pentagon (A) = 1/2× 5s × a
Where:
s : side of the pentagon
a: apothem
Replacing with the values given and solving for A (area):
A =1/2 x (5 x10) x 6.88
A = 172 square centimeters.
Feel free to ask for more if needed or if you did not understand something.
Answer:
It doesn't form a right triangle
Step-by-step explanation:
According to the Pythagorean theorem, the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
a^2 + b^2 = c^2 by substituting the three values, 10, 15, and 20 you should get an equivalent value of the hypotenuse.
10^2 + 15^2 = 20^2
100 + 225 = 400
325 =/= 400
This is false.
Since this is not equivalent, it is NOT a right triangle.
Hope this helped :)
Answer:
Step-by-step explanation:
reqd.area=area of square ABCD + area of trapezoid(or trapezium)CEFG
BE=BC+CE=16+16
CD=CG+GD=8+8
A=16×16+1/2 (16+8)×16
=256+192
=448 sq. inches.
or
reqd. area=32×16-1/2(8×16)
=512-64
=448 sq. inches.
Answer:
measurement of angle 3 is 140 degrees
Step-by-step explanation:
angle 4 = angle 2
angle A = angle 3
angle A = 180 - angle 4 = 180-40 = 140 degrees
