Answer:
The measure of ∠A is 127°.
Step-by-step explanation:
The interior angles of a triangle always add up to 180°. Since you can fix <em>three</em> triangles into a pentagon, the sum of its interior of angles is 540° You could also look at how many angles there are (5), multiply that number by 180°, then subtract 360° from the product.
540° - (113° + 80° + 130° + 90°) = ∠A
540° - 413° = 127°
∠A = 127°
<em>Hope this helps,</em>
<em>~ Nicki ~</em>
Answer:
I think it's 139.
Step-by-step explanation:
5+5=10
10-3=7
7+70=77
77-47=30
30+109= 139
Answer:
When a prism has its bases facing up and down, the lateral area is the area of the vertical faces.
(For a rectangular prism, any pair of opposite faces can be bases.)
The lateral area of a right prism can be calculated by multiplying the perimeter of the base by the height of the prism.
The geometric mean is defined as the nth root of the product of n numbers.
This means, you multiply all the numbers together
5×8=40
And then you take the nth root of that number. In this case, it's the square root, but if there were more numbers, like three or four, it would be the cube and fourth root, respectively.
√40 = 6.32455532
So, the geometric mean of 5 and 8 is 6.32455532
