Question

Solve the problem...​

Answer 1

Answer:

In ∆OMR and ∆ONR,

seg MR seg NR congruent)

seg OM = seg ON seg OR bisects MRN and MON.

(Tangent segments drawn from an external point to a circle are

(Radii of the same circle)

seg OR seg OR (Common)

<OMR = <ONR

(SSS congruence criterion)

→ <ORM = <ORN (CPCT)

Also, <MOR = <NOR (CPCT).

Therefore,seg OR bisects MRN and MON.

Answer 2

Answer:

Explanation: 200,000 kJ/5 kg = 40,000 kJ/kg. So, calorific value of fuel is given by 40,000 kJ/kg