Answer:
The answer is 36 degrees
Step-by-step explanation:
Lets call the variables X= Base Angle and Y= Vertix Angle and X=2Y
As Isosceles triangle theorem "If two sides of a triangle are congruent, then the angles opposite those sides are congruent" We asume that the X value of each base angle is the same and the sum of the three angles are equal to 180 degrees, so we have:
1)X+Y+X=180
2) We know that X=2Y so we replace them in the below formula
3) 2Y+Y+2Y=180
4) 5Y=180
5) Then we resolve the variable Y and divide the 180 degrees by 5 Y=180/5
6)Then we have that Y=36 Degrees
Please see attachment to follow up the step by step
I hope that this answer finds you well
The surface area would be 17.6ft2
Explanation:
2 x 1 x 1/2 = 1
2 x 1 x 1/2 = 1
3 x 1 = 3
3 x 2 = 6
3 x 2.2 = 6.6
6.6 + 6 + 3 + 1 + 1 = 17.6
1. 16
2. 10
3. ?
4?
for 3 and 4 I think you use a protractor
Answer: the last one
Step-by-step explanation: