Question
In ∆ PQR, M, N, and S are the mid-points of sides PQ,
PR and QR, respectively. If the area of the ∆ PQR is 46 cm² , what is the area (in cm²) of the quadrilateral MNRQ?Solution
Given: M, N, and S are midpoints of sides PQ, PR, and QR of triangle PQR. Area of ∆PQR = 46 cm².
Join midpoints M, N, and S. Quadrilateral MNRQ is formed by removing triangle MNS from triangle PQR.
Since MNS is formed by joining midpoints, it is similar to ∆PQR and has one-fourth its area.
Area of ∆MNS = (1/4) × 46 = 11.5 cm²
Area of quadrilateral MNRQ = 46 - 11.5 = 34.5 cm².
Nutritional quality ofdietary protein is evaluated on the basis of
Commercial dielectric heater uses frequency in range of …...MHz.( 35-40 )
Which of the following factors affects microbial growth
a) pH
b) Oxygen availability
c) Storage temperatur...
How many times Cyclamates is sweeter than sucrose
The immunoglobulins that can bind with mast cells and release histamine…
Cellulose is a polymer made up of
Amylase, Cellulase, Lipase, Pectinase enzymes are…in nature
Prolonged heating of oils result in formation of
Type of moisture that can be removed by common drying technique is
…. is a major fish allergens, belong to the ….binding proteins.