Triangles MCQs with Answers

Which of the following is NOT a Pythagorean triple?

• A.$(3, 4, 5)$
• B.$(5, 12, 13)$
• C.$(7, 9, 6)$
• D.$(8, 15, 17)$

The points $A(1, 2)$, $B(0, 4)$ and $C(3, 5)$ are the vertices of _?

• A.An equilateral triangle
• B.An isosceles triangle
• C.A scalene triangle
• D.A right-angled triangle

In a right triangle with angles $90^\circ$ and $30^\circ$, the third angle is?

• A.$30^\circ$
• B.$45^\circ$
• C.$60^\circ$
• D.$90^\circ$

Past Paper MCQ

The angle of depression of a point situated at a distance of $70$ m from the base of a tower is $60^\circ$. The height of the tower is:

• A.$35\sqrt{3}$ m
• B.$\frac{70}{\sqrt{3}}$ m
• C.$140$ m
• D.$70\sqrt{3}$ m

If each angle on the base of an isosceles triangle is $45^\circ$, then the measure of the third angle is?

• A.$45^\circ$
• B.$60^\circ$
• C.$90^\circ$
• D.$120^\circ$

If the height of a triangle is 10 cm and its shadow (base) is 10 cm, which angle is formed?

• A.$30^\circ$
• B.$45^\circ$
• C.$60^\circ$
• D.$90^\circ$

For triangle $ABC$, if $a^2 + b^2 < c^2$, then the triangle is _?

• A.Acute triangle
• B.Right triangle
• C.Obtuse triangle
• D.Equilateral triangle

Two triangles having the same corresponding angles but different side lengths are said to be _?

• A.Congruent
• B.Equivalent
• C.Similar
• D.Symmetric

In a right-angled triangle, $\tan\theta$ is equal to?

• A.$\frac{b}{h}$
• B.$\frac{b}{p}$
• C.$\frac{p}{h}$
• D.$\frac{p}{b}$

In $\triangle ABC$, if $\angle A = 50^\circ$ and $\angle B = 60^\circ$, then $\angle C$ is:

• A.$70^\circ$
• B.$80^\circ$
• C.$60^\circ$
• D.$50^\circ$