Answer:
C
Step-by-step explanation:
the angle in a semicircle = 90° , that is the 3rd angle in the triangle.
the sum of the 3 angles in a triangle = 180° , then
p + 90° + 42° = 180°
p + 132° = 180° ( subtract 142° from both sides )
p = 48°
Answer:
I think you have to multiple them all around the triangle
Answer:
7.8
Step-by-step explanation:
1. you add all the numbers together
2. Divide by 5
3. Then divide answer by 10
4. You get your final answer
Step-by-step explanation:
4/sin45=

Answer:
If the shape of end face has n sides
Then, in total, there are n+2 faces
Using that formula
Faces in 20-sided polygon = n+2 = 20+2 = 22
Step-by-step explanation:
Pls vote as brainliest