Answer:
26
Step-by-step explanation:
Complementary angles add to 90 degrees
a+b = 90
64+b = 90
Subtract 64 from each side
64-64 +b = 90-64
b = 26
Answer:
194 cm squared
Step-by-step explanation:
The prism is made of 5 shapes: 2 large rectangles, 2 triangles, and 1 medium rectangle.
To find the surface area, find the area of each surface and add them together.
2 large rectangles that measure 10 by 6. So the area is 60. For 2 it will be 2*60 = 120.
2 triangles that measure 4 by 6. So the area is 1/2*4*6 = 12. For 2 it will be 2*12 = 24.
1 medium triangle that measures 5 by 10. So the area is 50.
The total surface area is 120 + 24 + 50 = 194.
Answer: 1
−
1
(
s
e
c
2
−
1
t
a
n
2
)
Step-by-step explanation:
Answer:
18 : 3
Step-by-step explanation:
Basic proportionality question. All we need to here is to expression the given fractions ( , and ) as a fraction itself, and hence expressing the ratio we need to get, in fraction form.
- So, we have expressed this in a fraction, which we want to reduce
- The fractions have been taken as improper fractions
- Now we took the inverse fraction, through multiplication
- 35 and 35 cancel out, leaving us with the simplified fraction 18 / 3
_____
So now we have 18 / 3, the ratio in fraction form. The scale is thus 18 to 3, or in other words 18 : 3.
Hope that helps!