Question
Let A, B, and C be the mid-points of sides PQ, and QR PR, respectively, of ΔPQR. If the area of ΔPQR is 64cm², then find the area of ΔABC.
By mid-point theorem, the line segment joining the mid-points of two sides of a triangle is parallel to the third side & vice-versa, Area of ΔABC = (1/4) x Area of ΔPQR 64/4 = 16 cm²More Geometry Questions
- The lengths of three medians in a triangles are 15 cm, 20 cm, 25 cm. What is the area of that traingle (in cm 2 )?
- Find the area of triangle having sides 8 m, 9 m, and 13 m.
- The lengths of three medians in a triangles are 24 cm, 32 cm, 40 cm. What is the area of that traingle (in cm 2 )?
- Angles of a triangle are in the ratio 3 : 5 : 10. Find the sum of the smallest and middle angle of the triangle.
- If I is the incentre of ΔABC , if ∠ BIC = 1300 , then what is the measure of ∠ BAC?
- The radius of a circle is 5 cm, and the length of the chord is 6 cm. Find the distance between the chord and the centre of the circle.
- If in a right angle triangle ABC, Angle B is a right angle. AB = 8 cm, BC= 15cm if BD is perpendicular to AC find the length of BD?
- What will be inradius of an equilateral triangle of side 8 cm?
- A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?
- If in a ΔABC, AD is internal angle bisector & D is a point on BC, AB = 8 cm, BC = 10 cm then what is BD:CD?
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
