Question
Vaccination dose by some individuals benefits the
individuals around them by reducing the pace with which the disease spreads. This is an example of which of the following?Solution
Vaccination dose by some individuals benefits the individuals around them by reducing the pace with which the disease spreads. This is an example of a Positive Externality.
Find the length of AB, if ΔABC ~ ΔRQP and BC = 14 cm, QP = 7 cm and RQ = 5 cm.
In the given figure, AB ∥ QP, AB = x, PQ = x + 10, RB = x/2, BP = x + 1. Find PQ.
In the Figure given below, find the value of x?

- In triangle XYZ, UV is drawn parallel to side YZ. If XU = 10 cm, UX = 6 cm, and XV = 15 cm, find XZ.
In a ΔDEF, ∠D = 45°, ∠E = 2∠F. What is the value of ∠F?
- Determine the length of side BC if ∠BAC = 60⁰, AB= 10 cm and AC = 15 cm.
If in triangle ABC, If side AB=6√ 3, AC=12 and BC=6, then angle B equals:
The sides of a triangle are 13 cm, 14 cm, and 15 cm. What is the area of the triangle?
In ∆ PQR, S is the midpoint of QR. T is the midpoint of line PS. Then, Area of ∆PTQ : Area of ∆ PQR is
In ΔPQR, PQ = 4 cm, QR = 3 cm, and RP = 3.5 cm. ΔDEF is similar to ΔPQR. If EF = 9 cm, what is the perimeter of ΔDEF?