in the figure angle PQR is equal to Angle PST equal to 90 degree PQ = 5 cm and PR = 2 cm
Answers
Answer: 25:21
Step-by-step explanation:
Answer:
Δ PQR ≅ ΔPTS
25:21
Step-by-step explanation:
in Δ PQR & ΔPTS
∠PQR = ∠PST = 90°
∠QPS = ∠TPS = x° (same Angle)
As sum of three angles of triangle = 180° , Two angles are equal so third angle would also be equal 180°-90°-x° = 90°-x°
∠QRP = ∠PTS = 90°-x°
as all three angle are equal
so
Δ PQR ≅ ΔPTS
so Ratio of Sides = PQ/PS = 5/2 = 2.5
Let Say area of small triangle ΔPTS= x cm²
Area of similar triangle is in ratio of squares of ratio of their sides
then area of larger triangle Δ PQR = (2.5)²x = 6.25x cm²
Area of Quadrilateral SRQT = Area of Δ PQR - Area of ΔPTS
=> Area of Quadrilateral SRQT = 6.25x - x = 5.25x cm²
Area of Δ PQR : Area of Quadrilateral SRQT :: 6.25x : 5.25x
Area of Δ PQR : Area of Quadrilateral SRQT :: 625 : 525
Area of Δ PQR : Area of Quadrilateral SRQT :: 25 : 21