This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Math 11 Chapter 12
Application of Trigonometry
Test - 2
1.
Circum radius
a) Δ / s
b) Δ= √S(s-a)(s-b)(s-c)
c) b = a / Sinβ Sinα
d) abc / 4Δ
2.
Radius of an In circle is
a) r = Δ / S
b) a Sin
β/2
Sin
γ/2
/ Cos
α/2
c) s / a
d) r = abc/4Δ
3.
Right angled triangle is also an oblique triangle.
a) True
b) False
4.
By law of Sines
a) b = a / Sinβ Sinα
b) Δ= √S(s-a)(s-b)(s-c)
c) b = a - Sinβ Sinα
d) abc / 4Δ
5.
Triangle is the only ____ rectilinear figure .
a) complex
b) simple
c) rigid
d) straight
6.
A triangle, which is not right, is called
a) Both.
b) Oblique triangle.
c) None of these.
d) Right triangle
7.
Hero's formula is given by Δ=
Ö
s(s-a)(s-b)(s-c) where s,a, b, c have their usual meanings.
a) True
b) False
8.
In order to bear the burden of bridges, arches below the bridges are constructed in the form of triangles.
a) True
b) False
This is more feedback!
This is the feedback!
