Step-by-step explanation:
m∠3+ m∠5 = 180° (co-int angles are supplementary)
5x+ 10 + 3x + 10 = 180° (co-int ∠'s, parallel lines)
8x + 20 = 180
8x = 160
x= 160/8
x= 20°
75.4614 rounded to the nearest thousandth is 75.461
Answer:
Step-by-step explanation:
because the fractions have a common denominator you can add them
Answer:
√27
Step-by-step explanation:
The triangles of the pyramid are equilateral triangles with sides of 6''.
Dividing a triangle into two equal parts we get two congruent right triangles, with a hypotenuse of 6'', one leg of 3'', and the other leg is the slant height (s). From Pythagorean theorem:
3² + s² = 6²
s² = 6² - 3²
s = √27
