Question

Find the value of X

Answer 1

Answer:

x = 14

Step-by-step explanation:

• By tangent secant theorem

• $x^2 = 7(7+21)$

• $\implies x^2 = 7(28)$

• $\implies x ^2=196$

• $\implies x=\pm\sqrt{196}$

• $\implies x=\pm 14$

• x can not be negative

• $\implies x=14$