Using Pythagorean’s theorem
a^2 +b^2= c^2
We know
c=15
b=9
a=?
Sub that in the Pythagorean’s theorem
a^2+9^2 = 15^2
a^2 + 81 = 225
a^2= 225-81
a^2 = 144
a= square root of 144
a= 12
Therefore the answer is 12
Answer:
50.5
Step-by-step explanation:
THEOREM:
•<u> </u><u>Supplementary angle</u> —» The sum of two angles is equal to 180°.
ANSWER:
By supplementary angle property,
So, m∠QRS + m∠ABC = 180°
- m∠QRS + 41° = 180°
- m∠QRS = 180° - 41°
- m∠QRS = 139°
