Advertisements
Advertisements
प्रश्न
Find the measure of each angle of an equilateral triangle.
उत्तर
In equilateral triangle we know that each angle is equal
So ∠A = ∠B = ∠C
Now ∠A + ∠B + ∠C = 180° (by triangle property)
3∠A = 180°
∠A = 60°
Hence. ∠A = ∠B = ∠C = 60°
APPEARS IN
संबंधित प्रश्न
In a ΔABC, if AB = AC and ∠B = 70°, find ∠A.
If ΔPQR≅ ΔEFD, then ∠E =
In the pair of triangles given below, the parts shown by identical marks are congruent. State the test and the one-to-one correspondence of vertices by which the triangles in the pair are congruent, the remaining congruent parts.
In the following figure, OA = OC and AB = BC.
Prove that: AD = CD
The following figure shown a triangle ABC in which AB = AC. M is a point on AB and N is a point on AC such that BM = CN.
Prove that: ΔAMC≅ ΔANB
State, whether the pairs of triangles given in the following figures are congruent or not:
Which of the following pairs of triangles are congruent? Give reasons
ΔABC;(BC = 5cm,AC = 6cm,∠C = 80°);
ΔXYZ;(XZ = 6cm,XY = 5cm,∠X = 70°).
If the perpendicular bisector of the sides of a triangle PQR meet at I, then prove that the line joining from P, Q, R to I are equal.
Sides, AB, BC and the median AD of ΔABC are equal to the two sides PQ, QR and the median PM of ΔPQR. Prove that ΔABC ≅ ΔPQR.
Given that ∆ABC ≅ ∆DEF List all the corresponding congruent sides
