Answer:
71°
Step-by-step explanation:
All angles inside of a triangle add up to 180°, so you need to find angles that add up properly. First, you should subtract 38 from 180, which gives you 142°. Now, if you look at the outer measurements, you can clearly see that this triangle is isosceles, meaning it has both two congruent sides and angles. So we are left with 142, and it needs to be dispersed evenly into the two angles because they are congruent, so divide by 2 and you get 71° for X.
BD is 4.3 the shape is symmetrical
Answer:
27
Step-by-step explanation:
30/2=15 +12=27
The surface area of a sphere = 4πr²
4πr²=100π
Dividing both sides by 4π,
r² = 100π÷4π = 25
r² = 25
Taking the square root on both sides,
r = 5 centimeters
