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.
Which one is calculated in Quintal per ha-
Areas having Ia > -66.7 comes under _____
Aluminium phosphide is a kind of ?
Toxic substance present in Colocasia is:
Under Kingdom Plantae, which division comprises of organisms which have chlorophyll-bearing, simple, thalloid, undifferentiated body?
Rice contains __% protein. Rice protein is known as ___
Crop susceptible to water stress and water logging
A common biocontrol agent used to control plant diseases is
The physical expression of an individual's genetic makeup is called:
Which of the following common names of wheat is incorrectly matched with its scientific name?
Relevant for Exams:
