Answer:
r=8
t=4√29
Step-by-step explanation:
By the altitude leg theorem:

This implies that:

We simplify to obtain:

By the Pythagoras theorem:





Answer:
68,63
Step-by-step explanation:
I think it may be a 180 degree angle but I wouldnt trust myself so idk
Answer:
the answer is 12
Step-by-step explanation:
since the triangle is equilateral meaning all side of ABC is equal to each other AB= BC = AC= 8cm and MN is the middle line that divides AB and BC by two
thus, MB =BN= 4 cm. MN is the middle line thus will also be equal to the half of AC meaning MN=AC/2= 4cm. and perimeter is MBN = MN+MB+BN= 4cm+4cm+4cm =12cm
Answer:
construct angle 40degreeusingprotractor