We gots triangle and half circle
square is meaning all sides are 20
that means height and base are 20 (isocelese)
and diameter is 20
area triangle=1/2bh=1/2(20)(20)=200
square=side*side=20*20=400
semicircle=1/2*pir^2
d/2=r, 20/2=r=10
semi=1/2*pi*10^2=1/2*pi*100=50*pi
using aprox pi=3.141592
semi=157
add them all
200+400+157=757
G is answer
Answer:
If the bisectors of two adjacent angles are perpendicular to each other, are the angles then supplementary angles?
Suppose two angles ABC and CBD are x and y.
x+y = 180 deg.
The bisector of angle ABC (BE) and the bisector of angle CBD (CF) will form angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.
Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle
Adjacent angles are when the 2 angles have a common vertex and a common arm.
if the exterior sides of 2 adjacent angles are perpendicular, then the angles are complementary angles.
Then the sum of the 2 adjacent angles is a right angle - 90°.
When 2 angles add up to 90°, they are called a pair of complementary angles.
Step-by-step explanation:
Yes they're equivalent, 15x3=45 and 45x3=135 therefore they are both multiplied by three and are equivalent