# 11th Class Math MCQS Chapter 12

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The angle made by an object at a lower position is called:
Right angle
None of these
angle of depression
angle of elevation

A triangle can be constructed if:
One side given
2 side are given
Three side are given
Three angle are given

The graph of trigonometric functions is
None of these
Smooth curve
Straight line
Circle

When a =37.35, b = 3.25, C = 35.06, what will be the smallest angle?
4°41′
3°39′
3°40′

If a = 319, b = 168 and y = 110° 22′ then ? + ? =
60°45′
69°38′
89°40’12”
91°10′

abc/4? =
r
r2
r1
R

The triangle which is not right triangle is called
Acute triangle
Oblique triangle
Circum triangle
Obtuse triangle

If R is the radius of circum – circle the R =
c/2sin?
b/2sin?
a/2sin?
All of these

The radius of inscribed circle is called