Question

5. In adjoining figure PO I BC, ADI BC then find following ratios. (1) Α( ΔΡΟΒ) A(Δ PBC) A(Δ PBC) A(Δ ABC) P (ii) A(Δ ABC) A(Δ ADC) (iv) Α(ΔΡQC) B D (iii) Α/Δ ADC) Fig. 1.16​

Answer 1

Answer:

Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes.

Melting temperature (Tm): 0 °C

Density (ρ): 0.1–0.8 g/cm3

Compressive strength (σc): 3–7 MPa

Tensile strength (σt): 1.5–3.5 kPa

Answer 2

Answer:

In adjoining figure PQ⊥BC,AD⊥ BC then find following ratios.

(i) A(ΔPQB)/A(ΔPBC)  =  BQ/BC

(ii)A(ΔPBC)/A(ΔABC)  = PQ/AD

(iii)A(ΔABC)/A(ΔADC)  = BC/DC

(iv)A(ΔADC)/ A(ΔPQC) = (DC * AD) / (QC * QP)

Step-by-step explanation:

A(ΔPQB)  = (1/2) BQ * PQ

A(ΔPBC)  = (1/2) BC * PQ

=> A(ΔPQB)/A(ΔPBC)  = BQ/BC

A(ΔPBC) = (1/2) BC * PQ

A(ΔABC)

=  (1/2) BC * AD

A(ΔPBC)/A(ΔABC)  = PQ/AD

A(ΔABC) = (1/2) BC * AD

A(ΔADC)  = (1/2) DC * AD

A(ΔABC)/A(ΔADC)  = BC/DC

A(ΔADC) = (1/2) DC * AD

A(ΔPQC) = (1/2) QC * QP

A(ΔADC)/ A(ΔPQC) = (DC * AD) / (QC * QP)