If a and b represent the height and base of the triangular face, and h represents the length of its hypotenuse, and w represents the width or thickness of the prism, the surface area (A) is
.. A = ab +w*(a +b+ h)
Of course the area of each triangle is (1/2)ab, but there are two of them, so their total area is ab.
Put in the numbers and do the arithmetic. If you have a lot of them all specified in this way, a spreadsheet can make short work of it.
A = 5*12 +4*(5 +12 +13) = 160 . . . square inches
Answer:
8/27 m^3
Step-by-step explanation:
Vol = l × w × h
= 2/3 × 2/3 × 2/3
= 2×2×2 / 3×3×3
= 8/27 m^3
When you're multiplying fractions, just multiply
top × top × top
And bottom×bottom×bottom
Simplify when possible.
8/27 cannot be simplified.
Answer:
the slope is 3 and the y-intercept is y=-9
Step-by-step explanation:
the slope is always to the left of the x and the number on the end is the y-intercept
analyze picture
y int is -3
slope is
1/2
so, the equation is 1/2x-3,
which is number three
Lets x = radius
x^2 + 10^2 = (x+8)^2
x^2 + 100 = x^2 + 16x + 64
16x = 100 - 64
16x = 36
x = 2.25
answer
B. 2.25
