Starting at home, ishaan traveled uphill to the gift store for
1
8
1818 minutes at just
1
0
1010 mph. he then traveled back home along the same path downhill at a speed of
3
0
3030 mph.
what is his average speed for the entire trip from home to the gift store and back?

Step-by-step explanation:

This is an isosceles triangle because side AC and side AB are congruent (they are both marked with single slash marks). That means that angle B and angle C are also congruent. Angle B also measures 2x. To find the measure of each angle we will use the Triangle Angle-Sum Theorem:

x + 2x + 2x = 180 and

5x = 180 so

x = 36

Angle A = 36, B = 72 and C = 72