ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively (see Fig. 7.31). Show that these altitudes are equal.
In ∆AEB and ∆AFC,
∠AEB and ∠AFC (Each 90º) A
=∠A (Common angle)
AB = AC (Given)
∠∆AEB ∠∆AFC (By AAS congruence rule)
∴ BE = CF (By CPCT)
A driver of a car travelling at \(52\) \(km \;h^{–1}\) applies the brakes Shade the area on the graph that represents the distance travelled by the car during the period.
Which part of the graph represents uniform motion of the car?