Unitary and Congruency

Rachel can type 540 words in half an hour. How many words will she be able to type in 20 minutes with the same efficiency?

• 360 words

• 400 words

• 800 words

The total length of 6 identical iron rods is 48 units. What will be the total length of 9 such rods?

• 72

• 62

• 52

• 82

If the cost of 7 m of cloth is ₹1470, find the cost of 5 m of cloth

• 2050

• 1050

Find the simple interest on AED 13700 if it is calculated at 5% interest rate per annum at the end of 5 years

• 3425

• 3528

What congruency criteria will be used?

• SAS

• SSS

• ASA

Which congruency criteria ?

• ASA

• SAS

• SSS

Find the length of DE

• 29

• 21

• 31

Which congruency criteria?

• RHS

• ASA

• SSS

In triangle ABC, AB = 7cm, ∠BAC = 50° and ∠ABC = 35° In triangle DEF, EF = 7cm, ∠DEF = 35° and ∠DFE = 50° Are triangles ABC and DEF congruent? If they are, state the condition

• SAS

• SSS

• Yes, ASA

In triangle GHI, GH = 7cm, HI = 4cm and GI = 5cm. In triangle JKL, JK = 7cm, KL = 4.5cm and JL = 5cm. Are triangles GHI and JKL congruent? If they are, state the condition

• yes SSS

• No